On Saturday, July 12, 2014 06:24:52 PM Julian Wollrath wrote: > Hi, > > > changing the brightness on my Thinkpad X230 with Intel HD4000 > > graphics, stopped working after commit 886129a8eebe (ACPI / video: > > change acpi-video brightness_switch_enabled default to 0). Changing > > it back to 1, fixes the problem, if "acpi_osi=!Windows 2012" is also > > set. Before that commit just setting "acpi_osi=!Windows 2012" was > > enough to get changing the brightness working. > > small correction: It setting "acpi_osi=!Windows 2012" does only help > when using a kernel with commit 886129a8eebe as HEAD, with v3.16-rc4 > setting video.brightness_switch_enabled=1 and acpi_osi=!Windows 2012 or > just one of them, does not make changing the brightness work again. And reverting commit 751109aad583 (ACPI / video: Change the default for video.use_native_backlight to 1) make that last problem go away, right? We are going to rever commit 886129a8eebe for other reasons, so can you please revert it from 3.16-rc5 on your system and report back? Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
